Improvement in slotting and shaping machines



W. H. WARREN;

Improvement in Slotting and Shaping Machines.

' Patented Au'g. 6,1872.

7 lu l g AM. PM) ro-uruasmM/c ca m xrosavmz 9/? avzssj UNITED STATESWILLIAM H. WARREN, or WORCESTER, MASSAoHUSETTS.

IMPROVEMENT IN SLOTTING AND SHAPING MACHINES.

Specification forming part of Letters Patent No. 130,258, dated August6, 1872.

Specification describing a new and useful Improvement in CombinedShaping and Slotting Machine, invented by WILLIAM H. WAR- REN, ofWorcester, in the county of Worcester and State of Massachusetts.

Figure l is an end view of my improved machine, partly in section toshow the construction. Fig. 2 is a top view of the same, parts beingbroken away to show the construction.

Similar letters of reference indicate corresponding parts.

' My invention has for its object to combine a Shaper and a slotter in asingle machine, mounted upon one frame, and driven by the same drivingdevice, in such a way that they may both work at the same time, oreither separately, as desired; and it consists in the two rams, onemoving vertically and the other horizontally, and both mounted upon thesame traverse-shoe and driven by the same driving device, as hereinaftermore fully described.

A represents the frame of the machine, which is constructed in theordinary manner. B is the driving-shaft, to one end of which is attacheda cone-pulley, G, to receive the drivin g-belt. The shaft B revolves inhearings in the ends of the frame A. D is a small gearwheel, placed uponthe shaft B and connected with it by a feather and groove, so that theshaft B may always carry the gear-wheel D with it in its revolutions,while allowing the said gear-wheel to slide longitudinally. Thegear-wheel D is made with a long hub, upon which is placed a sleeve, E,which is secured to the traverse-shoe F, and has a screw-hole formed init to receive the long screw G, which is swiveled to the ends of theframe A, and is turned by a crank or hand wheel attached to one of itsends, so that by turning the said Screw G in one or the other directionthe traverse-shoe F'may be moved in one or the other direction. The shoeF works in ways upon the top of the frame A. The teeth of the gear-wheelD mesh into the teeth of the large gear-wheel H, which revolves upon ahollow stud attached to the guide-frame I, in which the slotting-ram Jworks, and which is attached to the traverse-shoe F. K is theconnecting-rod by which the ram J is driven, one end of which is pivotedby a T-bolt in a T-slot formed in the said ram J. The other end of theconnecting-rod K is pivoted by a T-bolt in a T-slot formed in' thecrank-arm L, so that the said connecting-rod K may be convenientlyadjusted to give a longer or a shorter throw to the ram J, as may berequired. The crank L is attached to the end of the short shaft M, whichpasses through the eccentric perforation of the hollow stud, upon whichthe gear-wheel H revolves, and to the other end of which is attached abevel-gear wheel, N. To the gear-wheel N, or to'the shaft M, at theinner side of said gear-wheel N, is attached a plate or arm, 0, in whichis formed a radial slot to receive a pin, attached to the side of thelarge gear-wheel H, so that the shaft M and its attachments may receivea varying movement from the wheel H, revolving with a uniform movement.The teeth of the bevelgear wheel N mesh into the teeth of the bevelgearwheel 1?, placed upon the shaft Q, which revolves in bearings attachedto the traverse-shoe F. The bevel-gear wheel P is secured by a screw tothe flange of the flanged hub R placed upon the shaft Q, and connectedwith it by a tongue and groove, so that the gear-wheel P and flanged hubmay carry the shaft Q with them in their revolutions, while allowing thesaid shaft Q to slide longitudinally through the said wheel and hub. Tothe forward end of the shaft Q is attached a crank-arm, S, in which isformed a T-slot to receive the T-serew, by which the lower end of theconnecting-rod T is pivoted to said crank. The upper end of theconnecting-rod T is pivoted to the vertical ram U by a bolt, X, whichpasses through a slot in the guideframe or way V, in which the ram Uworks, and through a slot in the said ram U, where it is adjustablysecured in place. To the bolt X is pivoted the lower end of theconnectingrod W, the upper end of which is pivoted to the end of thelever Y, which is pivoted to some suitable support, and the other end ofwhich is provided with a weight, Z, to balance the ram U and cause it tomove downward with a positive movement. The lower end of the guide frameor way V is attached to the base frame A, which rests upon the traverseshoe F, and is slotted to receive the bolts by which it is seeuredtosaid shoe. The rams J and U are provided with adjustable tool-holders inthe ordinary manner.

By this construction, when the slottcr is not required for use thepivoting-screw of the connecting-rod K may be moved opposite the axis ofthe crank L, which will allow the ram J to stand still. In the same waythe ram U may be made to stand still by adjusting the lower end of theconnecting-rod T at the axis of the crank S. When the slotter is notrequired for use the bolts that secure the frame A to the shoe F may beloosened and the frame A and all its attachments slide back out of theway then, by removing the screw that secures the

